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11-18-2002, 11:18 AM
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#1 |
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Registered User
Join Date: Nov 2002
Posts: 1
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Ignition Problems
I have an 87 GMC with a 350. I drove it to work and since then it will not start. I have no fire from the coil. All fuses are good, I changed the coil, ignition modual, pick-up coil. I have power to the coil. Is there any switches that will stop the ignition module from sending a signal to the coil?
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11-18-2002, 11:59 AM
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#2 |
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Registered User
Join Date: Jun 2002
Location: DFW, TX
Posts: 1,680
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What about the voltage regulator? Just a though but I could be way off.
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Scott Shelbourne |
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11-18-2002, 12:53 PM
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#3 |
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Right turn Clyde
Join Date: Nov 2002
Location: Cincinnati, Ohio
Posts: 2,911
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What about checking the line fuses. If they are balged (sp?)out they arent any good anymore.
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1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI |
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11-18-2002, 12:54 PM
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#4 |
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You get what you pay for
 
Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
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Have you checked all the wiring inside the distributor. What about the cap? Is it in good shape. I once had the brass button overheat on one and burn through the cap. Mine wouldn't hit a lick. I finally narrowed it down to a fusible link in the power wire going to the distributor which had burned in two. Of course you say the coil is getting power though. Check all the wires going to the computer also.
I would try another known good distributor if I could find one to use. This will tell you if this part is causing it. Then you can go from there.
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Mike 1985 Chevy C-10 |
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11-18-2002, 10:42 PM
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#5 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Is the fuel pump tied to the computer? Might want to check if the fuel pump is kicking on.
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11-20-2002, 02:47 PM
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#6 |
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Registered User
Join Date: Oct 2001
Location: Baton Rouge, La.
Posts: 8
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I just help one of my friends with the same problem. His ESC went out, I had him put in a regular ing. module ( 4-pins ), his had 6 pins.
Just use the two wires that go to the pickup coil for one side and the normal two wires for the other side. The ESC was holding down the output of the ing. module. NOTE: Year One has shop books (w/wiring diag.)4 sale for our trucks. I've been away for awhile, I've been helping a friend install a LS1 in a 90 Chevy. truck. I'm doing the wiring harness for the computer and the orignal trucks wiring with out the orig. computer. Man what a task, I'm having a bunch of fun. I'll let ya'll know how it comes out. Since my truck is running just fine, I can help other people. 
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*** 81' GMC 327/300hp >289K miles and going strong *** Stepside, WITH 91' Surbur front cap 3.08 gears with GM Posi-trac 700R4 with lockup TC 1406 Edelbrock carb. & Orignal Chev. alum. manifold Waiting for Pro-fuel injection system or LS1 |
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11-20-2002, 04:14 PM
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#7 |
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Registered User
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
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If you have a manual transmission you may have a problem with your clutch safety switch. It is located under the dash and is connected to the clutch pedal (near the pivot point). If the clutch is not pushed in the truck will not start. If the switch goes bad you truck wont start at all. Just another thought.....
Good Luck!
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* AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION * |
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